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China Wholesale Dealers of Medium Duty Firebrick - Light Weight Silica Brick Kiln Refractory Bricks SiO2 91% – Rongsheng factory and manufacturers | Rongsheng Detail:
Light Weight Silica Insulation Brick adopt finely divided silica ore as the raw material. the critical particle size is not more than 1mm, therein more than 90% particle size is less than 0.5mm. silicate insulation brick is made by adding flammable substance in the burdening or adopting gas bubble method to produce porous structure through firing, silicate insulation bricks also can be made to be unburned product.
Properties of Light Weight Silica Insulation Brick
- Good thermal conductivity,
- Small residual swell,
- Strong acid-resistant slag erosion,
- Light weight and Eco friendly,
- Good thermal shock resistance,
- High temperature stable volume change,
- Strong high temperature mechanical strength.
Manufacturing Process of Light Weight Silica Insulation Brick
Light Weight Silica Insulation Brick puts raw materials and water into a kneading equipment according to a certain proportion and then kneaded into mud, shape the mud into bricks through molding by machine or manpower. then dry the bricks till the residual water content is lower than 0.5%, which prevent the volume expansion from the crystal transformation of SiO2 and fire the shaped bricks in the high temperature.
RongshengLight Weight Silica Insulation Brick Specifications
Items |
QG-1.0 |
QG-1.1 |
QG-1.15 |
QG-1.2 |
SiO2 % |
≥91 |
≥91 |
≥91 |
≥91 |
Bulk Density g/cm3 |
≥1.00 |
≥1.10 |
≥1.15 |
≥1.20 |
Cold Crushing Strength MPa |
≥2.0 |
≥3.0 |
≥5.0 |
≥5.0 |
0.1Mpa Refractoriness Under Load °C |
≥1400 |
≥1420 |
≥1500 |
≥1520 |
Reheating Linear Change (%) 1450°C×2h |
0~+0.5 |
0~+0.5 |
0~+0.5 |
0~+0.5 |
20-1000°C Thermal Expansion Coefficient ×10-6℃-1 |
1.3 |
1.3 |
1.3 |
1.3 |
Thermal Conductivity (W/(m·K) 350°C±10℃ |
≤0.55 |
≤0.6 |
≤0.65 |
≤0.7 |
Application of Light Weight Silica Insulation Brick
Silica insulation refractory brick can be used in the glass furnace and hot blast stove,silica insulation block also can be used in coke ovens, carbon forging furnace and any other industrial furnaces.
Product detail pictures:
Related Product Guide:
Our eternal pursuits are the attitude of "regard the market, regard the custom, regard the science" as well as theory of "quality the basic, have faith in the initial and administration the advanced" for China Wholesale Dealers of Medium Duty Firebrick - Light Weight Silica Brick Kiln Refractory Bricks SiO2 91% – Rongsheng factory and manufacturers | Rongsheng , The product will supply to all over the world, such as: Hamburg, Algeria, Mecca, Our factory is equipped with complete facility in 10000 square meters, which makes us be able to satisfy the producing and sales for most auto part products. Our advantage is full category, high quality and competitive price! Based on that, our products win a high admiration both at home and abroad.